Power control interface between a wind farm and a power transmission system
CA 2511082 C · Owner: Stahlkopf, Karl E. · Inventors: Stahlkopf, Karl E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power control interface between an unstable power source such as a wind farm and a power transmission line employs an Electrical Energy Storage Control , System, and Electronic Compensation Module which act together like an "electronic shock absorber" for storing excess power during periods of increased power generation and releasing stored energy during periods of decreased power generation due to wind fluctuations. The Control System is provided with a "look ahead" capability for predicting power output (wind speed conditions) and maintaining energy storage or release over a "narrowband" range despite short duration fluctuations. The Control System uses data derived from …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 18, 2003 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.